Electric mop

ABSTRACT

An electric mop includes a handle, a flopping member connected to the handle. The mopping member includes a driving member with an output thereof connected to a pair of cleaning portions. The driving member includes a motor with an output shaft thereof connected to a driving bevel gear, a reversing gear formed a right-angle transmission relationship with the driving bevel gear, and a pair of cylindrical gear groups respectively connected to the pair of cleaning portions. The difference between the number of cylindrical gears of the two groups is singular. The structure drives the two cleaning portions respectively rotation forward and backward by the driving member so that force of the two cleaning portions can be offset each other for users to keep balance and steadily control a moving direction of the electric mop, the two cleaning portions are provided for ensuring a large cleaning surface and cleaning some corners.

BACKGROUND 1. Technical Field

The present disclosure generally relates to cleaning devices field, andespecially relates to an electric mop.

2.Description of Related Art

A conventional electric mop generally includes a handle, a moppingmember, a cleaning member fixed with the mopping member and a drivingmember electrically connected to a power supply to drive the cleaningmember rotate to clean the ground. However, a conventional electric mophas only one cleaning member so that the clean way is too single, whichis not optionally adjusted according to actual demands. In addition,theone cleaning member can only rotate towards a single direction when theelectric mop is operated to clean the ground so that it is difficult forthe user to maintain the balance of the electric mop.

SUMMARY

The technical problems to be solved: in view of the shortcomings of therelated art, the present disclosure relates to an electric mop which candrive two cleaning portions respectively rotation forward and backwardby a driving member so that force of the two cleaning portions cancancel each other for users to keep balance and steadily control amoving direction of the electric mop, the two cleaning portions areprovided that is not only can ensure a large cleaning surface, but alsocan clean some comers with a single cleaning portion.

The technical solution adopted for solving technical problems of thepresent disclosure is:

an electric mop includes a handle, a mopping member connected to thehandle. The mopping member includes a driving member with an outputthereof to connect to a cleaning member. The cleaning member includes afirst cleaning portion and a second cleaning portion. The driving memberincludes a motor with an output shaft thereof to a driving bevel gear; areversing gear formed a right-angle transmission relationship with thedriving bevel gear and including a driven bevel gear portion and adriven cylindrical gear portion coaxially fixed with each other, thedriven bevel gear portion meshed with the driving bevel gear; acylindrical driving gear group including a first cylindrical driving earconnected to the first cleaning portion and a second cylindrical drivinggear connected to the second cleaning portion; a first cylindrical geargroup with its input meshed with a side of the driven cylindrical gearportion and its output meshed with the first cylindrical driving gear; asecond cylindrical gear group with its input meshed with the other sideof the driven cylindrical gear portion and its output meshed with thesecond cylindrical driving gear. The difference between the number ofcylindrical gears of the first cylindrical gear group and the secondcylindrical gear group is singular.

Wherein each of the first cylindrical gear group and the secondcylindrical gear group includes a rack wheel and a pinion coaxiallyfixed with the rack wheel, both the rack wheel and the pinion arecylindrical gears, while the rack wheel is acted as a transmissioninput, and the pinion is acted as a transmission output.

Wherein the mopping member includes a housing that includes an ovalcover, an oval base clasped with the cover and a receiving chamberformed between the cover and the base, the receiving chamber including abox for receiving the driving member herein, the box including an upperplate formed on the top thereof and a lower plate formed opposite to theupper plate; while the motor is horizontally received in a middleportion of the box, both the cover and the base are curved outward at aninstallation of the motor in the box.

Wherein the first cylindrical driving gear is coordinated with the firstcleaning portion via a polygonal shaft lever to engage with a shaftsleeve of the first cleaning portion, and the second cylindrical drivinggear is also coordinated with the second cleaning portion via anotherpolygonal shaft lever to engage with another shaft sleeve of the secondcleaning portion; the polygonal shaft lever and a corresponding shaftsleeve are locked with each other by bolts and a bearing is arranged onthe shaft lever at a position corresponding to the lower plate

Wherein each of the first and second cylindrical driving gears includesa first horizontal ring extending upward from a corresponding uppersurface thereof, with an equal-altitude gap formed between the firsthorizontal ring and the upper plate; a second horizontal ring extendingdownward from a middle portion of the upper plate and corresponding tothe first and second cylindrical driving gears, with a sameequal-altitude gap formed between the second horizontal ring and acorresponding upper surface of the first and second cylindrical drivinggears.

Wherein a handle bottom portion of the handle is movably connected tothe mopping member and includes a pair of clamping portions horizontallyopposite to each other, and a ballhead formed between the pair ofclamping portions and rotatably connected to the pair of clampingportions by a horizontal shaft of the clamping portion inserted into acorresponding horizontal shaft hole of the ballhead; while the moppingmember includes a pair of supporting portions longitudinally opposite toeach other, the pair of supporting portions rotatably connected to theballhead by a longitudinal shaft of the supporting portion inserted intoa corresponding longitudinal shaft hole.

Wherein the horizontal shaft includes a first shaft body and thelongitudinal shaft includes a second shaft body, the first shaft bodyinserted into the horizontal shaft hole and including a first annularflange at a distal end thereof, and the second shaft body inserted intothe longitudinal shaft hole and including a second annular flange at adistal end thereof, the first and second annular flanges provided foravoiding the first shaft body from separating from the horizontal shafthole and the second shaft body from separating from the longitudinalshaft hole.

Wherein the handle is a telescopic structure and includes a fixing postand a moving post sleeved onto the fixing post from a top of the fixingpost, the top of the fixing post includes a locking member forcontrolling a movable position of the moving post.

Wherein the locking member includes: an inner sleeve sleeved onto thetop of the fixing post and positioned between the moving post and thefixing post, the inner sleeve including a slot and a limiting membermovably formed on the slot; a plurality of adjusting recesses arrangedalong an axial direction of an outer surface of the moving post andcombined with the slot to form a receiving room for receiving thelimiting member therein; a pushing plate installed between the innersleeve and the fixing post, and a cavity formed between the inner sleeveand the fixing post for the pushing plate axially sliding in the cavityto realize engagement or disengagement of the pushing plate and theslot. In a misalignment state, the limiting member is driven by themoving post to pass through the slot and slide into the cavity. While ina closed state, the limiting member is driven by the pushing plate topass through the slot and fall into the receiving room.

Wherein the limiting member is a cylindrical bar, and the adjustingrecess includes a bottom wall and a pair of sidewall respectivelyconnected to two opposite ends of the bottom wall, with an obtuse angleformed between the bottom wall and each sidewall, a slant surface isformed at a distal end of the pushing plate and gradually inclineddownward from the distal end of the pushing plate.

An electric mop according to an exemplary embodiment of the presentdisclosure includes a handle, a mopping member connected to the handle.The mopping member includes a driving member with its output connectedto a cleaning member, and a housing; the housing including an ovalcover, an oval base clasped with the cover and a receiving chamberformed between the cover and the base, the receiving chamber including abox for receiving the driving member therein, the box including an upperplate formed on the top thereof and a lower plate formed opposite to theupper plate. The cleaning member includes a first cleaning portion and asecond cleaning portion The driving member includes a motor horizontallyreceived in a middle portion of the box, both the upper plate and thelower plate curved outward at an installation of the motor in the box,and a driving bevel gear connected to an output shaft of the motor; areversing gear formed a right-angle transmission relationship with thedriving bevel gear, and including a driven bevel gear portion and adriven cylindrical gear portion coaxially fixed with each other, thedriven bevel gear portion meshed with the driving bevel gear; acylindrical driving gear group including a first cylindrical drivinggear connected to the first cleaning portion and a second cylindricaldriving gear connected to the second cleaning portion, each of the firstand second cylindrical driving gears including a first horizontal ringextending upward from a corresponding upper surface thereof, with anequal-altitude gap formed between the first horizontal ring and theupper plate; and a second horizontal ring extending downward from amiddle portion of the upper plate and corresponding to the first andsecond cylindrical driving gears, with a same equal-altitude gap formedbetween the second horizontal ring and a corresponding upper surface ofthe first and second cylindrical driving gears; a first cylindrical geargroup with its input meshed with a side of the driven cylindrical gearportion and its output meshed with the first cylindrical driving gear; asecond cylindrical gear group with its input meshed with the other sideof the driven cylindrical gear portion and its output meshed with hesecond cylindrical driving gear. The difference between the number ofcylindrical gears of the first cylindrical gear group and the secondcylindrical gear group is singular. When the electric mop is working,the first and second cylindrical driving gears are kept in a horizontalposition by the first horizontal ring and the second horizontal ringrespectively matching with the upper plate, the upper surfaces of thefirst and second cylindrical driving gears to ensure the first andsecond: cleaning portions closely attached to the ground, respectively.

Wherein each of the first cylindrical gear group and the secondcylindrical gear group includes a rack wheel and a pinion coaxiallyfixed with the rack wheel, both the rack wheel and the pinion arecylindrical gears, while the rack wheel is acted as a transmissioninput, and the pinion is acted as a transmission output.

Wherein the first cylindrical driving gear is coordinated with the firstcleaning portion via a polygonal shaft lever to engage with a shaftsleeve of the first cleaning portion, and the second cylindrical drivinggear is also coordinated with the second cleaning portion via anotherpolygonal shaft lever to engage with another shaft sleeve of the secondcleaning portion; the polygonal shaft lever and a corresponding shaftsleeve are locked with each other by bolts and a bearing is arranged onthe shaft lever at a position corresponding to the lower plate.

Wherein a handle bottom portion of the handle is movably connected tothe mopping member and includes a pair of clamping portions horizontallyopposite to each other, and a ballhead formed between the pair ofclamping portions and rotatable connected to the pair of clampingportions by a horizontal shaft of the clamping portion inserted into acorresponding horizontal shaft hole of the ballhead; while the moppingmember includes a pair of supporting portions longitudinal y opposite toeach other, the pair of supporting portions rotatably connected to theballhead by a longitudinal shaft of the supporting portion inserted intoa corresponding longitudinal shaft hole. And wherein the horizontalshaft includes a first shaft body and the longitudinal shaft includes asecond shaft body, the first shaft body inserted intra the horizontalshaft hole and including a first annular flange at a distal end thereof,and the second shaft body inserted into the longitudinal shaft hole andincluding a second annular flange at a distal end thereof, the first andsecond annular flanges provided for avoiding the first shaft body fromseparating from the horizontal shaft hole and the second shaft body fromseparating from the longitudinal shaft hole.

Wherein the handle is a telescopic structure and includes a fixing postand a moving post sleeved onto the fixing post from a top of the fixingpost, the top of the fixing post includes a locking member forcontrolling a movable position of the moving post.

Wherein the locking member includes: an inner sleeve sleeved onto thetop of the fixing post and positioned between the moving post and thefixing post, the inner sleeve including a slot and a limiting membermovably formed on the slot; a plurality of adjusting recesses arrangedalong an axial direction of an outer surface of the moving post andcombined with the slot to form a receiving room for receiving thelimiting member therein; a pushing plate installed between the innersleeve and the fixing post, a cavity formed between the inner sleeve andthe fixing post for the pushing plate axially sliding in the cavity torealize engagement or disengagement of the pushing plate and the slot,and a slant surface formed at a distal end of the pushing plate andgradually inclined downward from the distal end of the pushing plate. Ina misalignment state, the limiting member is driven by the moving postto pass through the slot and slide into the cavity. While in a closedstate, the limiting member is driven by the pushing plate to passthrough the slot and fall into the receiving room.

The present disclosure provides the advantages as below.

The structure of the present disclosure can drive the two cleaningportions respectively rotation forward and backward by the drivingmember so that forces respectively applied on the two cleaning portionscan be offset each other to a certain extent for users to keep balanceand steadily control a moving direction of the electric mop, the twocleaning portions are provided for ensuring a large cleaning surface andcleaning some corners with a single cleaning portion.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the embodiments can be better understood with referenceto the following drawings. The components in the drawings are notnecessarily dawns to scale, the emphasis instead being placed uponclearly illustrating the principles of the embodiments. Moreover, in thedrawings, like reference numerals designate corresponding partsthroughout the several views.

FIG. 1 is a schematic view of the electric mop in accordance with anexemplary embodiment.

FIG. 2 is an exploded, schematic view of a mopping member of theelectric mop of FIG. 1.

FIG. 3 is a schematic view of a driving member of the electric mop ofFIG. 1.

FIG. 4 is similar to FIG. 3, but shown the inner structure of thedriving member of the electric mop of FIG. 1.

FIG. 5 is a sectional view of the driving member of the electric mop ofFIG. 1.

FIG. 6 is a schematic view of an upper plate of the driving member ofthe electric mop of FIG. 1.

FIG. 7 is a schematic view of a handle of the electric mop of FIG. 1.

FIG. 8 is a schematic view of a locking member of the handle of theelectric mop of FIG. 1.

FIG. 9 is an assembly schematic view of the handle and a ballhead of theelectric mop of FIG. 1.

FIG. 10 is an assembly schematic view of the handle, the mopping memberand the ballhead of the electric mop of FIG. 1.

FIG. 11 is a meshing schematic view of a reversing gear, a rack wheeland a pinion of the electric mop of FIG. 1.

The element labels according o the exemplary embodiment of the presentdisclosure shown as below:

handle 1, handle bottom portion 1 a, fixing post 10, locking member 100,moving post 11, adjusting recess 110, receiving room 110 a, bottom wall111, sidewall 112, inner sleeve 12, cavity 13, limiting member 14,pushing plate 15, distal end of the pushing plate 15 a, slant surface 15b, operating key 150, spring 16, slot 17, mopping member 2, housing 2 a,cover 20, receiving chamber 200, box 202, base 21, through-hole 210,driving member 3, motor 30, output shaft 30 a, driving bevel gear 31,reversing gear 32, driven bevel gear portion 320, driven cylindricalgear portion 321, first cylindrical gear group 33, first cylindricalgear group 34, cylindrical driving gear group 35 a, first cylindricaldriving gear 35, second cylindrical driving gear 36, upper surface350/360, shaft lever 37, screw hole 370, first horizontaling 38, secondhorizontal ring 39, rack wheel 300, pinion 301, upper plate 302, lowerplate 303, equal-altitude gap 304, bearing 305, cleaning member 4, firstcleaning portion 41, second cleaning portion 42, shaft sleeve 43,ballhead 5, clamping portion 6, horizontal shaft 60, first shaft body61, first annular flange 62, horizontal shaft hole 63, supportingportion 7, longitudinal shaft 70, second shaft body 71, second annularflange 72, longitudinal shaft hole 73.

DETAILED DESCRIPTION

The disclosure is illustrated by way of example and not by way oflimitation the figures of the accompanying drawings, in which likereference numerals indicate similar elements.

According to the described exemplary embodiment of the presentdisclosure, all other embodiments obtained by one of ordinary skill inthe related art without the need for a creative labor are within theprotection scope of the present disclosure. Unless defined otherwise,the technical terms or scientific terms used in the present disclosureshall be a general meaning commonly understood by those having ordinaryskill in the related art which the present disclosure is applied.

In the description of the present disclosure, the terms such as “first”and “second” shown in the specification are only used to describe, butnot indicated that the elements of the present disclosure is importantor represented the amount of the elements. That is, the features limitedby the terms of “first” and “second” may explicitly or implicitlyinclude one or more features. Similarly, the terms such as “a”, “an”,“one” and “the” and the like shown in the specification are only used todescribe at least one, but not indicated that the elements of thepresent disclosure is important or represented the amount of theelements or not denoted a limit of quantity. Furthermore, the meaning ofthe terms “include” and “consist of” and the like means that an elementor an item in front of a word is intended to cover the elements orobjects enumerated in the following words, and to be equivalent, withoutexcluding other elements or articles. In addition, except wherespecifically otherwise illustrated or limited, the terms “connect” and“link” used herein should be understood in a-broad sense. Such as, themeaning may be tight connection, removable connection, or integratedconnection. The meaning pray also be mechanical connection, electricalconnection, direct connection or indirect connection throughintermediaries, or internal connection within two elements The meaningof the terms used herein may be understood by one of ordinary skill inthe related art according to specific conditions of the presentdisclosure. Furthermore, it needs to be understood that the termsmentioned below: “upper”, “below”, “left”, “right”, etc, are shown inthe specification of the present disclosure. The indicated orientationposition of the terms shown in the detailed description is based on theorientation or position show in the figures of the accompanying drawingsof the present disclosure, which is only to easily simplify thedescription of the present disclosure, but not indicated that thedevices or elements of the present disclosure should have a particularorientation or should be designed and operated in a particularorientation So the terms illustrated in the detail description are notby way of the limitation f the present disclosure.

Referring to FIGS. 1-11, an electric mop according to an exemplaryembodiment of the present disclosure includes a handle 1, a moppingmember 2 connected to the handle 1. The mopping member 2 includes adriving member 3 and a cleaning member 4 connected to an output of thedriving member 3. The cleaning member 4 includes a first cleaningportion 41 and a second cleaning portion 42 parallel to the firstcleaning portion 41. The driving member includes:

A motor 30 includes an output shaft 30 a connected to a driving bevelgear 31. Control components of the motor 30 are generally installedwithin the handle 1 and wire passes from the handle 1 into the moppingmember 2 to electrically connect to the motor 30.

A reversing gear 32 includes a driven bevel gear portion 320 and adriven cylindrical gear portion 321 coaxially fixed with each other. Thedriven bevel gear portion 320 is meshed with the driving bevel gear 31so that the reversing gear 32 is formed a right-angle transmissionrelationship with the driving bevel gear 31. A state of the moppingmember 2 attached to the ground is taken as a horizontal directionreference when the electric mop is used. The rotation of the motor 30 ina vertical plane (perpendicular to a horizontal plane) is transformedinto the horizontal plane by right-angle drive and then the horizontalrotation is transmitted out by the driven cylindrical gear portion 321.

A cylindrical driving gear group 35 a includes a first cylindrical gear35 connected to the first cleaning portion 41 and a second cylindricalgear 36 connected to the second cleaning portion 42. The first andsecond cleaning portions 41, 42 are respectively positioned on the leftside and the right side of the mopping member 2 and the two parts arehorizontally farmed to each other. In this way. The overlap of both thefirst and second cleaning portions can ensure a large cleaning area anda single smaller cleaning portion can clean up a dead angle.

A first cylindrical gear group 33 is meshed with a side of the drivencylindrical gear portion 321, with its output meshed with the firstcylindrical driving gear 35, and a second cylindrical gear group 34 ismeshed with the other side of the driven cylindrical gear portion 321with its output meshed with the second cylindrical driving gear 36. Itcan ensure that the cleaning member 4 is ultimately driven to rotate ina direction of the horizontal plane to realize the cleaning operation bythe transmission of the first and second cylindrical gear groups 33, 34.

In the present embodiment of the disclosure,

The difference between the number of cylindrical gears of the firstcylindrical gear group 33 and the second cylindrical gear group 34 issingular. Referring to FIG. 4, there is one difference in the number ofcylindrical gears used for sequential transmission in the two geargroups, thereby the rotation direction of the first cleaning portion 41and the second cleaning portion 42 is opposite. Viewed from the top, onerotation direction is clockwise and the other rotation direction iscounterclockwise In this way, force respectively applied on the twocleaning portions can offset each other to a certain extent for users tokeep balance and steadily control a moving direction of the electricmop.

In some exemplary embodiments of the present disclosure, each of thefirst cylindrical gear group 33 and the second cylindrical, gear group34 includes a rack wheel 300 and a pinion 301 coaxially fixed with therack wheel 300 (seen in FIG. 11). That is to say, the rack wheel 300 andthe pinion 301 are in-line gears. Both the rack wheel 300 and the pinion301 are cylindrical gears. The rack wheel 300 is acted as a transmissioninput, and the pinion 301 is acted as a transmission output. The in-linegears in a middle portion of the gear groups is taken as an example todescribe the transmission input and the transmission output in detail:power is first transmitted from the motor 30 to the cleaning member 4,the rack wheel 300 in the middle portion of one gear group meshes withthe pinion 301 of a previous in-line gear (closer to the motor 30), andthe pinion 301 of the same gear group meshes with a rack wheel 300 of anext in-line gear. That is, for a same in-line gear self, its rack wheel300 is as an introduction power, and its pinion 301 is as an outputpower. By means of the rack wheel 300 and the pinion 301 of a samein-line gear misaligned in height, it is possible to reduce an areaoccupied and avoid the mopping member 2 being too large.

In some exemplary embodiments of the present disclosure, the moppingmember 2 includes a housing 2 a which includes an oval cover 20, an ovalbase 21 clasped with the cover 20 and a receiving chamber 200 formedbetween the cover 20 and the base 21. The receiving chamber 200 includesa box 202 for receiving the driving member 3 therein. The box 202includes an upper plate 302 formed on the top thereof and a lower plate303 formed opposite to the upper plate 302. The motor 30 is horizontallyreceived in a middle portion of the box 202 along the Y-axis direction,and both the cover 20 and the base 21 are curved outward at aninstallation of the motor 30 in the box 202, thereby a partial arch canallow the motor 30 be smoothly installed and avoid the increase of theoverall thickness of the housing 2 a. The first and second cylindricalgear groups 33, 34 are respectively positioned on the left side and theright side of the reversing gear 32 along the X-axis direction. Thefirst cylindrical driving gear 35 is coordinated with the first cleaningportion 41 via a polygonal shaft lever 37 to engage with a shaft sleeve43 of the first cleaning portion 41, and the second cylindrical drivinggear 36 is also coordinated with the second cleaning portion 42 viaanother polygonal shaft lever 37 to engage with another shaft sleeve 43of the second cleaning portion 42. The polygonal shaft lever 37 and acorresponding shaft sleeve 43 are locked with each other by bolts (notshown). Referring to FIG. 2 and FIG. 3, a cross sectional of each of thepolygonal shaft lever 37 and the shaft sleeve 43 is hexagonal. The shaftlever 37 passes through the lower plate 303 and a through-hole 210 ofthe base 21 and then inserts into a sleeve so that the rotation of thecylindrical driving gear group 35 a can be transmitted to the cleaningmember 4 via the engagement of the polygonal structure, and then a bolt(not shown is used to screw the shaft lever 37 from the inside of theshaft sleeve 43 into a screw hole 370 of the shaft lever 37 to fix thetwo parts together. A bearing 305 is arranged on the shaft lever 37 at aposition corresponding to the lower plate 303. The lower plate 303includes a stepped subsidence slot (not labeled) for the bearing 305sleeving on the shaft lever 37 and then being received in the steppedsubsidence slot. In this way, the bearing 305 is provided for reducingthe friction between the shaft lever 37 and the box 202 when rotation ofthe shaft lever 37, and also ensuring the rotation stability of theshaft lever 37.

In some exemplary embodiments of the present disclosure, referring toFIGS. 4-6, each of the first and second cylindrical driving gears 35, 36includes a first horizontal ring 38 extending upward from acorresponding upper surface 350, 360 thereof, with an equal-altitude gap304 formed between the first horizontal ring 38 and the upper plate 302.A second horizontal ring 39 is extended downward from a middle portionof the upper plate 302 and corresponding to the first and secondcylindrical driving gears 35, 36, with a same equal-altitude gap 304formed between the second horizontal ring 39 and the corresponding uppersurface 350, 360 of the first and second cylindrical driving gears 35,36. A center of the first horizontal ring 38 corresponds to that of thesecond horizontal ring 39, but the radius of the first and secondhorizontal rings 38, 39 is different to avoid hedging therebetween.

During operation of the electric mop, the cylindrical driving gear group35 a can produce a fluctuation along the Z axis under a centrifugalforce, such kind of fluctuation can affect the attachment of thecleaning member 4 and the ground so that the electric mop can'tthoroughly clean the ground. The first and second horizontal rings 38,39 are provided for effectively reducing an influence of the centrifugalforce on the cylindrical driving gear group 35 a. The cylindricaldriving gear group 35 a is kept in a horizontal position by the firsthorizontal ring 38 and the second horizontal ring 39 respectivelymatching with the upper plate 302, the upper surfaces 350, 360 of thefirst and second cylindrical driving gears 35, 36 to ensure the cleaningmember 4 closely attached to the ground, respectively. It is taken thefirst horizontal ring 38 as an example, the equal-altitude gap 304 isprovided for preventing the first horizontal ring 38 from interferingwith the rotation of the second cylindrical drive gear 36. It can benoted that the term “equal height” means that the height between a topedge of the first horizontal ring 38 and the upper plate 302 is equal,thereby the fluctuation of the second cylindrical driving gear 36 can becontrolled within an approximate horizontal range. When the fluctuationof the second cylindrical driving gear 36 in the direction of the Z axisreaches to a certain extent, the top edge of the first horizontal ring38 can be touched on the upper plate 302 to avoid further fluctuation.

Referring to FIGS. 9-10, in some exemplary embodiments of the presentdisclosure, a handle bottom portion 1 a of the handle 1 is movablyconnected to the mopping member 2 and includes a pair of clampingportions 6 horizontally opposite to each other. A groove (not labeled)is formed between the pair of clamping portions 6. A ballhead 5 isformed in the groove and rotatable connected to the pair of clampingportions 6 by a horizontal shaft 60 of the clamping portion 6 insertedinto a corresponding horizontal shaft hole 63 of the ballhead 5. Themopping member 2 includes a pair of supporting portions 7 longitudinallyopposite to each other. The pair of supporting portions 7 is rotatablyconnected to the ballhead 5 by a longitudinal shaft 70 of the supportingportion 7 inserted into a corresponding longitudinal shaft hole 73.Specifically, the horizontal shaft 60 includes a first shaft body 61 andthe longitudinal shaft 70 includes a second shaft body 71. The firstshaft body 61 is inserted into the horizontal shaft hole 63 and includesa first annular flange 62 at a distal end thereof, and the second shaftbody 71 is inserted into the longitudinal shaft hole 73 and includes asecond annular flange 72 at a distal end thereof. The first and secondannular flanges 62, 72 are provided for avoiding the first shaft body 61from separating from the horizontal shaft hole 63 and the second shaftbody 71 from separating from the longitudinal shaft hole 73. In thisway, a horizontal rotation and a longitudinal rotation between thehandle 1 and the flopping member 2 is obtained so that users canflexibly operate the electric mop in the usage process.

Referring to FIGS. 7-8, in some exemplary embodiments of the presentdisclosure, the handle 1 is a telescopic structure and includes a fixingpost 10 and a moving post 11 sleeved onto the fixing post 10 from a top10 a of the fixing post 10. The top 10 a of the fixing post 10 includesa locking member 100 for controlling a movable position of the movingpost 11. When the locking member 100 is opened, the moving post 11 canmove along an axis of the fixing post 10 to adjust a proper length ofthe handle 1. The locking member 100 is closed to limit the position ofthe moving post 11 after its adjustment is completed. In general, commonclasps, bolts, etc., may be used to accomplish the above function, butit is inconvenient to operate the electric mop, so the followingsolution is preferred:

The locking member 100 includes:

An inner sleeve 12 is sleeved onto the top 10 a of the fixing post 10and positioned between the moving post 11 and the fixing post 10. Theinner sleeve 12 includes a slot 17 and a limiting member 14 movablyformed on the slot 17.

A plurality of adjusting recesses 110 is arranged along an axialdirection of an outer surface of the moving post 11 and combined withthe slot 17 to form a receiving room 110 a for receiving the limitingmember 14 therein.

A pushing plate 15 is installed between the inner sleeve 12 and thefixing post 10, and a cavity 13 is formed between the inner sleeve 12and the fixing post 10 for the pushing plate 15 axially sliding in thecavity 13 to realize engagement or disengagement of the pushing plate 15and the slot 17. In a misalignment state, the limiting member 14 isdriven by the moving post 11 to pass through the slot 17 and slide intothe cavity 13. While in a closed state, the limiting member 14 is drivenby the pushing plate 15 to pass through the slot 17 and then fall intothe receiving room 110 a. In order to facilitate applying force, thepushing plate 15 includes an operating key 150 exposed out of the handle1. The operating key 150 is curved upward at a middle portion thereof sothat both its front end surface (not labeled) and its back end surface(not labeled) are inclined. Force is applied on the pushing plate 15until it is staggered from the slot 17, thereby the locking member 100is opened. Which is an accidental operation, but a normal state of thelocking member 100 is closed. In order to maintain the pushing plate 15in a normal position closed with the slot 17, a spring 16, as aresetting member, is provided. One end of the spring 16 is abuttedagainst the pushing plate 15 and the other end of the spring 16 isresisted against a wall surface (not labeled) of the fixing post 10. Thespring 16 is temporarily compressed when the locking member 100 isopened, while the pushing plate 15 is kept in a position of closing theslot 17 by an elastic action of the spring 16 after the operation iscompleted.

The operation principle of the locking member 1110 is shown thefollowing:

At an opening step, the pushing plate 15 is operated to stagger from theslot 17 and then the mooring post 11 is operated to begin telescoping.In this process, the limiting member 14 is separated from acorresponding adjusting recess 110 by passing through the slot 17 andfinally enters the cavity 13. The moving post 11 can be freelytelescoped without the interference of the limiting member 14.

At a closed step, the moving post 11 is adjusted to reach a properposition and the pushing plate 15 is reset to move in the cavity 13. Atthis time, the limiting member 14 is again pushed into the receivingroom 110 a under the pushing plate 15 resetting in the cavity 13,thereby the moving post 11 is limited under the interference of limitingmember 14.

In order to smoothly complete to operate the limiting member 14, thefollowing optimized settings are made: the limiting member 14 is acylindrical bar, and the adjusting recess 110 includes a bottom wall 111and a pair of sidewall 112 respectively connected to two opposite endsof the bottom wall 111. An obtuse angle is formed between the bottomwall 111 and each sidewall 112, and a slant surface 15 b is formed at adistal end 15 a of the pushing plate 15 and gradually inclined downwardfrom the distal end 15 a of the pushing plate 15. Resistance applied onthe limiting member 14 is reduced hen it is disengaged or engaged withthe slot 17 under a guide of the slant surface 15 b and the cylindricalstructure of the limiting member 14. At the same time, the slant surface15 b can act as a guide to avoid the limiting member 14 misalignmentduring the limiting member 14 movement.

Although the features and elements of the present disclosure aredescribed as embodiments in particular combinations, each feature orelement can be used alone or in other various combinations within theprinciples of the present disclosure to the full extent indicated by thebroad general meaning of the terms in which the appended claims areexpressed.

What is claimed is:
 1. An electric mop, comprising: a handle: a moppingmember connected to the handle, the mopping member comprising a drivingmember with an output thereof connecting to a cleaning member, thecleaning member comprising a first cleaning portion and a secondcleaning portion; and the driving member comprising a motor with anoutput shaft thereof connecting to a driving bevel gear; a reversinggear formed a right-angle transmission relationship with the drivingbevel gear, and comprising a driven bevel gear portion and a drivencylindrical gear portion coaxially fixed with each other, the drivenbevel gear portion meshed with the driving bevel gear; a cylindricaldriving gear group comprising a first cylindrical driving gear connectedto the first cleaning portion and a second cylindrical driving gearconnected to the second cleaning portion; a first cylindrical gear groupwith its input meshed with a side of the driven cylindrical gear portionand its output meshed with the first cylindrical driving gear; a secondcylindrical gear group with its input meshed with the other side of thedriven cylindrical gear portion and its output meshed with the secondcylindrical driving gear; and wherein the difference between the numberof cylindrical gears of the first cylindrical gear group and the secondcylindrical gear group is singular.
 2. The electric mop as claimed inclaim 1, wherein each of the first cylindrical gear group and the secondcylindrical gear group comprises a rack wheel and a pinion coaxiallyfixed with the rack wheel, both the rack wheel and the pinion arecylindrical gears, and the rack wheel is acted as a transmission input,and the pinion is acted as a transmission output.
 3. The electric mop asclaimed in claim 1, wherein the mopping member comprises a housing whichcomprising an oval cover, an oval base clasped with the cover and areceiving chamber formed between the cover and the base, the receivingchamber comprising a box for receiving the driving member therein, thebox comprising an upper plate formed on the top thereof and a lowerplate formed opposite to the upper plate; while the motor ishorizontally received in a middle portion of the box, both the cover andthe base are curved outward at an installation of the motor in the box.4. The electric mop as claimed in claim 3, wherein the first cylindricaldriving gear is coordinated with the first cleaning portion via apolygonal shaft lever to engage with a shaft sleeve of the firstcleaning portion, and the second cylindrical driving gear is alsocoordinated with the second cleaning portion via another polygonal shaftlever to engage with another shaft sleeve of the second cleaningportion; the polygonal shaft lever and a corresponding shaft sleeve arelocked with each other by bolts and a bearing is arranged on the shaftlever at a position corresponding to the lower plate.
 5. The electricmop as claimed in claim 4, wherein each of the first and secondcylindrical driving gears comprises a first horizontal ring extendingupward from a corresponding upper surface thereof, with anequal-altitude gap formed between the first horizontal ring and theupper plate; a second horizontal ring extending downward from a middleportion of the upper plate and corresponding to the first and secondcylindrical driving gears, with a same equal-altitude gap formed betweenthe second horizontal ring and a corresponding upper surface of thefirst and second cylindrical driving gears.
 6. The electric mop asclaimed in claim 1, wherein a handle bottom portion of the handle ismovably connected to the mopping member and comprises a pair of clampingportions horizontally opposite to each other, and a ballhead formedbetween the pair of clamping portions and rotatably connected to thepair of clamping portions by a horizontal shaft of the clamping portioninserted into a corresponding horizontal shaft hole of the ballhead;while the mopping member comprises a pair of supporting portionslongitudinally opposite to each other, the pair of supporting portionsrotatably connected to the ballhead by a longitudinal shaft of thesupporting portion inserted into a corresponding longitudinal shafthole.
 7. The electric mop as claimed in claim 6, wherein the horizontalshaft comprises a first shaft body and the longitudinal shaft comprisesa second shaft body, the first shaft body inserted into the horizontalshaft hole and comprising a first annular flange at a distal endthereof, and the second shaft body inserted into the longitudinal shafthole and comprising a second annular flange at a distal end thereof, thefirst and second annular flanges provided for avoiding the first shaftbody from separating from the horizontal shaft hole and the second shaftbody from separating from the longitudinal shaft hole.
 8. The electricmop as claimed in claim 1, wherein the handle is a telescopic structureand comprises a fixing post and a moving post sleeved onto the fixingpost from a top of the fixing post, the top of the fixing post comprisesa locking member for controlling a movable position of the moving post.9. The electric mop as claimed in claim 8, wherein the locking membercomprises: an inner sleeve sleeved onto the top of the fixing post andpositioned between the moving post and the fixing post, the inner sleevecomprising a slot and a limiting member movably formed on the slot; aplurality of adjusting recesses arranged along an axial direction of anouter surface of the moving post and combined with the slot to form areceiving room for receiving the limiting member therein; a pushingplate installed between the inner sleeve and the fixing post, and acavity formed between the inner sleeve and the fixing, post for thepushing plate axially sliding in the cavity to realize engagement ordisengagement of the pushing plate and the slot; and wherein in amisalignment state, the limiting member is driven by the moving, post topass through the slot and slide into the cavity; while in a closedstate, the limiting member is driven by the pushing plate to passthrough the slot and fall into the receiving room.
 10. The electric mopas claimed in claim 9, wherein the limiting member is a cylindrical bar,and the adjusting recess comprises a bottom wall and a pair of sidewallrespectively connected to two opposite ends of the bottom wall, with anobtuse angle formed between the bottom wall and each sidewall, a slantsurface is formed at a distal end of the pushing plate and graduallyinclined downward from the distal end of the pushing plate.
 11. Anelectric mop comprising: a handle; a mopping member connected to thehandle, the mopping member comprising a driving member with its outputconnecting to cleaning member, and a housing; the housing comprising anoval cover, an oval base clasped with the cover and a receiving chamberformed between the cover and the base, the receiving chamber comprisinga box for receiving the driving member therein, the box comprising anupper plate formed on the top thereof and a lower plate formed oppositeto the upper plate; the cleaning member comprising a first cleaningportion and a second cleaning portion; and the driving member comprisinga motor horizontally received in a middle portion of the box, both theupper plate and the lower plate curved outward at an installation of themotor in the box, and a driving bevel gear connected to an output shaftof the motor; a reversing gear formed a right-angle transmissionrelationship with the driving bevel gear, and comprising a driven bevelgear portion and a driven cylindrical gear portion coaxially fixed witheach other, the driven bevel gear portion meshed with the driving bevelgear; a cylindrical driving gear group comprising a first cylindricaldriving gear connected to the first cleaning portion and a secondcylindrical driving gear connected to the second cleaning portion, eachof the first and second cylindrical driving gears comprising a firsthorizontal ring extending upward from a corresponding upper surfacethereof, with an equal-altitude gap formed between the first horizontalring'and the upper plate; and a second horizontal ring extendingdownward from a middle portion of the upper plate and corresponding tothe first and second cylindrical driving gears, with a sameequal-altitude gap formed between the second horizontal ring and acorresponding upper surface of the first and second cylindrical drivinggears; a first cylindrical gear group with its input meshed with a sideof the driven cylindrical gear portion and its output meshed with thefirst cylindrical driving gear; a second cylindrical gear group with itsinput meshed with the other side of the driven cylindrical gear portionand its output meshed with the second cylindrical driving gear; thedifference between the number of cylindrical gears of the firstcylindrical gear group and the second cylindrical gear group beingsingular; and wherein when the electric mop is working, the first andsecond cylindrical driving gears are kept in a horizontal position bythe first horizontal ring and the second horizontal ring respectivelymatching with the upper plate, the upper surfaces of the first andsecond cylindrical driving gears to ensure the first and second cleaningportions closely attached to the ground, respectively.
 12. The electricmop as claimed in claim 11, wherein each of the first cylindrical geargroup and the second cylindrical gear group comprises a rack wheel and apinion coaxially fixed with the rack wheel, both the rack wheel and thepinion are cylindrical gears, and the rack wheel is acted as atransmission input, and the pinion is acted as a transmission output.13. The electric mop as claimed in claim 12, wherein the firstcylindrical driving gear is coordinated with the first cleaning portionvia a polygonal shaft lever to engage with a shaft sleeve of the firstcleaning portion, and the second cylindrical driving gear is alsocoordinated with the second cleaning portion via another polygonal shaftlever to engage with another shaft sleeve of the second cleaningportion; the polygonal shaft lever and a corresponding shaft sleeve arelocked with each other by bolts and a bearing is arranged on the shaftlever at a position corresponding to the lower plate.
 14. The electricmop as claimed in claim 13, wherein a handle bottom portion of thehandle is movably connected to the mopping member and comprises a pairof clamping portions horizontally opposite to each other, and a ballheadformed between the pair of clamping portions and rotatably connected tothe pair of clamping portions by a horizontal shaft of the clampingportion inserted into a corresponding horizontal shaft hole of theballhead; while the mopping member comprises a pair of supportingportions longitudinally opposite to each other, the pair of supportingportions rotatably connected to the ballhead by a longitudinal shaft ofthe supporting portion inserted into a corresponding longitudinal shafthole; the horizontal shaft comprises a first shaft body and thelongitudinal shaft comprises a second shaft body, the first shaft bodyinserted into the horizontal shaft hole and comprising a first annularflange at a distal end thereof, and the second shaft body inserted intothe longitudinal shaft hole and comprising a second annular flange at adistal end thereof, the first and second annular flanges provided foravoiding the first shaft body from separating from the horizontal shafthole and the second shaft body from separating from the longitudinalshaft hole.
 15. The electric mop as claimed to claim 14, wherein thehandle is a telescopic structure and comprises a fixing post and amoving post sleeved onto the fixing post from a top of the fixing post,the top of the fixing post comprises a locking member for controlling amovable position of the moving post.
 16. The electric mop as claimed inclaim 15, wherein the locking member comprises: an inner sleeve sleevedonto the top of the fixing post and positioned between the moving postand the fixing post, the inner sleeve comprising a slot and a limitingmember movably formed on the slot; a plurality of adjusting recessesarranged along an axial direction of an outer surface of the moving postand combined with the slot to form a receiving room for receiving thelimiting member therein; a pushing plate installed between the innersleeve and the fixing post, a cavity formed between the inner sleeve andthe fixing post for the pushing plate axially sliding in the cavity torealize engagement or disengagement of the pushing plate and the slot,and a slant surface formed at a distal end of the pushing plate and,gradually inclined downward from the distal end of the pushing plate;and wherein in a misalignment state, the limiting member is driven bythe moving post to pass through the slot and slide into the cavity;while in a closed state, the limiting member is driven by the pushingplate to pass through the slot and fall into the receiving room.